<li class="layui-nav-item">
    <a href="javascript:void(0);" style="padding-left: 0;">你好！管理员：某某某</a>
    <dl class="layui-nav-child">
        <dd>
            <a href="javascript:void(0);">个人信息</a>
        </dd>
        <dd>
            <a href="{:url('demo/login/index')}">切换帐号</a>
        </dd>
        <dd>
            <a href="{:url('demo/login/index')}">退出</a>
        </dd>
    </dl>
</li>
<li class="layui-nav-item mobile-hide">
    <a href="/" target="_blank">前台首页</a>
</li>